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Citation: DANG Fu-Min, ZHEN Xin-Ping, NIU Chun-Ge, SUN Chao, WANG Ji-De, SU Xin-Tai. Preparation of Mesoporous Molecular Sieve Al-MCM-41 and Its Catalytic Activity for Synthesis of Diphenylethane[J]. Chinese Journal of Applied Chemistry, ;2009, 26(6): 1404-1408. shu

Preparation of Mesoporous Molecular Sieve Al-MCM-41 and Its Catalytic Activity for Synthesis of Diphenylethane

1.
a MOE Key Laboratory of Oil and Gas Fine Chemicals, Xinjiang University, Urumqi 830046;
2.
b Petrochemical Research Institute, Karamay Petrochemical Company, Karamay

Corresponding author: SU Xin-Tai,
Received Date: 27 November 2008
Available Online: 5 April 2009
Fund Project: 新疆自治区科技攻关重大专项项目(200732139) (200732139)校博士启动基金(BS080115)资助项目 (BS080115)

Al-MCM-41 mesoporous sieves were synthesized by using Na2SiO3 as silica source,Al₂(SO₄)₃ as aluminum source,and cetyltrimethylammonium bromide(CTAB) as template under hydrothermal condition.The Al-MCM-41 mesoporous sieves were characterized by X-ray diffraction(XRD),scanning electron microscopy(SEM) and infrared spectroscopy(IR).The synthesis of diphenylethane over Al-MCM-41 catalyst and its catalytic performance were investigated.The results show that the optimal conditions were the mass percent of catalyst was 1% of the feed stock;molar ratio of xylene to styrene was 7.5:1;reaction temperature was 140 ℃ and reaction time 3 h.The yield of diphenylethane under such conditions was about 87.1%,which was 17% higher than the yield when traditional sulfuric acid was used as catalyst.The results show that Al-MCM-41 is a promising solid acid catalyst for the synthesis of diphenylethylane instead of liquid acid.
- solid acid,
- Al-MCM-41,
- styrene,
- xylene,
- diphenylethane,
- catalysis
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